by Sadono Sukirno $12.00
by Frans F. Royan $9.00
by Hendri Ma'ruf $11.00
by Erwan Juhara $6.00
by Idi Setiyobroto, dkk $6.00
by - $11.00
by Dr. Zakiah Daradjat, dkk $11.00
by Mira W. $9.00
by Ir. Sukim Prayitno $5.00